Artificial solid-electrolyte interphase (SEI) for improved cycleability and safety of lithium-ion cells for EV applications

被引：135

作者：

Menkin, S. ^{[1
]}

Golodnitsky, D. ^{[1
,2
]}

Peled, E. ^{[1
]}

机构：

[1] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel

[2] Tel Aviv Univ, Wolfson Appl Mat Res Ctr, IL-69978 Tel Aviv, Israel

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 09期

关键词：

Lithium ion battery; SEI; Anode; Safety; Tin; Electric-vehicle; SI NEGATIVE ELECTRODES; BATTERIES; GRAPHITE;

D O I：

10.1016/j.elecom.2009.07.019

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Since the SEI is one of the most vulnerable factors in the safety of the lithium-ion battery, improvement in the stability of the SEI will result in a safer battery with better performance characteristics. In this work an artificial SEI was formed on graphite and tin-copper anodes by electropainting and vacuum-insertion techniques. The artificial SEI was found to stabilize the structure of the Sn-Cu anode and led to a cycle life for the cell that was longer by a factor of five and irreversible capacity less than half that of the pristine anode. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1789 / 1791

页数：3

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